International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 11 Issue: 05 | May 2024
p-ISSN: 2395-0072
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REVIEW OF MICRO PHASOR MEASUREMENT UNITS FROM THE PERSPECTIVE OF THE CONSUMER Sheikh Shadir 1, Yogini Suraj Yellewar 2 1M.Tech Scholars, EEE department, RSR Bhilai, Chhattisgarh India
2Assistant Professor, EEE department, RSR Bhilai, Chhattisgarh India
---------------------------------------------------------------------***--------------------------------------------------------------------grid operations. A mathematical tool for characterizing the Abstract - The infrastructure of the power grid has seen a
waveform is the phasor. Synchrophasors are measurements made by a PMU of the waveform's amplitude and phase angle in relation to a GPS-synchronized signal [3]. To determine the transmission grid's operational condition, the synchrophasors, which were computed on the various grid buses, are correlated with one another (figure 1).
significant change in the last few years, moving from a model of centralized power generation to one that is characterized by distributed generation from multiple small power plants that largely use renewable energy sources. As a result, new protection strategies are required for evolving distribution systems. These strategies must make use of cutting-edge protection devices and sensors, such as digital relays, phasor measurement units (PMUs), smart reclosers, and line sensors. In order to better understand prosumer applications, this article explores the use of PMUs in smart distribution grids.
Key Words: PMU; Prosumer; Islanding detection; Fault location.
1. INTRODUCTION Micro Phasor Measurement Units (µPMUs) are now essential parts of contemporary power grids due to developments in power system monitoring and control technology in recent years. By providing high-resolution, real-time measurements of voltage and current phasors at various grid sites, these small devices help utilities and operators improve the stability, dependability, and efficiency of the grid. Explaining PMUs from the consumer's point of view is crucial as scholars and professionals continue to explore the uses and advantages of these devices. The increasing penetration of distributed renewable generation has introduced significant uncertainties and randomness to the power distribution network operation [1]. The purpose of this study is to present a thorough overview of PMUs, emphasizing their function, role, and effects on consumers within the power grid ecosystem. Stakeholders can comprehend the impact of µPMUs on grid performance, resilience, and ultimately, the quality of service provided to end users, by gaining an understanding of them from the perspective of the consumer [2].
Figure 1 : Combination of phasors from two grid bus Since 1985, PMU data with a set of voltage and current measurements have been utilized in state estimation (the process of predicting the condition of the grid on the basis of available measurements). Decentralized design and distributed computing at the substation level were used to develop this system, which was then divided into multiple sections (figure 2). Based on the state of the boundary node, the system coordinates the differences between neighboring systems to produce a uniform outcome. Each system completes its estimate separately. GPS-synchronized measurements enable the procedure to be distributed [4]. Monitoring the condition of a sizable chunk of the electrical grid is one of the primary uses for PMU data. Numerous utilities have created internal technologies to track the dynamics of the grid in real time and to trigger warnings that anticipate anomalous events in the system following a number of cascading failures in the eastern and western interconnectivity of the United States.
The paper begins by elucidating the fundamental principles behind PMUs and their pivotal role in enhancing the observability and stability of electric grids. It then delves into the architecture, functionality, and deployment considerations of PMUs, highlighting their ability to provide synchronized phasor measurements in real-time. Furthermore, the paper discusses the applications of PMUs in various domains, including wide-area monitoring, control, and protection, elucidating their transformative impact on
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2. The Role of the PMU in the Actual Scenario Phasor Measurement Units (PMUs), which offer real-time synchrophasor measurements of voltage and current throughout the grid, have grown to be essential components
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